Affiliation: | a Laboratory of Parasitic Diseases, National Institute of Animal Health, National Agricultural Research Organisation, Tsukuba, Ibaraki 305-0856, Japan b Divison of Molecular Microbiology, Center of Molecular Biosciences, University of the Ryukyus, Senbaru, Nishihara, Okinawa 903-0213, Japan c Laboratory of Global Animal Resource Science, Graduate School of Agricultural Life Science, University of Tokyo, Yayoi, Bunkyo, Tokyo 113-8657, Japan |